Someone has to serve the fries a McDonalds and pick up the trash. Someone has to stock the shelves and deliver the mail. Our society would collapse if these people didn't exist.
No mom wants to say well my child is a career cashier but some people are.
I wouldn't want my son to be a janitor or do some low job but if he's making an honest living for himself that supports all his needs and wants and he's happy why should I complain.
We all want the best for our child we want them to go to college and succeed with six figure paychecks but it just doesn't always happen.
If they are happy we should be happy.